C521 Phosphor Bronze C Electrode
Nominal Chemical
Composition
INTRODUCTION
Aufhauser Phosphor Bronze C Electrode has a higher tin content than the PhosBronze-A (EC518), resulting in weld metals of higher hardness, tensile and yield strengths. The weld deposits is ductile, strong and machinable as well as resistant to salt water corrosion. Post-weld heat treatment is desirable for maximum ductility, especially if the weld metal is cold worked. The Phosphor Bronze C provides a good color match to bronze and will work-harden.
APPLICATIONS
- Joining base metals of similar composition: copper tin bronzes (Cu-Sn 6-8%), some brasses (Cu-Zn)
- Repairing wrought bronzes (Cu-Sn) and surfacing on brasses, steels, and cast iron
- Naval constructions and installations for sea water desalination, repair works
GENERAL INFORMATION
Chemical CompositionCopper | Tin | Iron | Lead | Phosphorus | Aluminum | Other* |
---|---|---|---|---|---|---|
Remainder | 7.0-9.0 | 0.25 | 0.02 | 0.05-0.35 | 0.01 | 0.50 |
* Total other includes Zinc, Manganese, Silicon, Nickel = 0.50%
ADDITIONAL INFORMATION
Copper and its alloys require a relatively high heat input with shortened welding time. Higher preheat temperatures and faster welding rates than for steel are necessary.
PHYSICAL and MECHANICAL PROPERTIES
Machinability | Excellent |
Color | Bronze |
Current Used | DC Reverse (electrode +) |
Position(s): | All |
Tensile Strength | 65,000 psi, max. |
Elongation in 2" | 45-50% |
Brinell Hardness | 85-100 |
SPECIFICATIONS MEET OR EXCEED
AWS A5.6 Class ECuSn-C |
ASME SFA 5.6 ECuSn-C |
MIL-E-23765/3 (MIL-CuSn-C) |
STANDARD SIZES AND DIAMETERS
Diameters | Lengths | Amperage |
---|---|---|
3/32" | 12" | 70-90 |
1/8" | 14" | 90-110 |
5/32" | 14" | 110-130 |
3/16" | 14" | 110-130 |
COMMON BASE METALS
UNS | DIN |
---|---|
C 50700 | CuSn2 |
C 51100 | CuSn4 |
C 51900 | CuSn6 |
C 52100 | CuSn8 |
CuSn6Zn | |
C 52400 | G-CuSn10 |
TYPICAL USES FOR ALLOY C521
Product Category | Product | Reason Category | Reason |
---|---|---|---|
Architecture | Bridge Bearing Plates | Corrosion Resistance | Corrosion Resistance |
Bridge Bearing Plates | Forming Characteristics | Formability | |
Bridge Bearing Plates | Friction & Wear Properties | Wear Resistance | |
Bridge Bearing Plates | Mechanical Properties | High Strength | |
Bridge Bearing Plates | Thermal Properties | Resistance to Stress Relaxation | |
Building | Thermostat Bellows | Corrosion Resistance | Corrosion Resistance |
Thermostat Bellows | Forming Characteristics | Formability | |
Thermostat Bellows | Mechanical Properties | Fatigue Resistance | |
Consumer | Coinage | Conductivity (Electrical) | Electrical Conductivity |
Coinage | Friction & Wear Properties | Wear Resistance | |
Cymbals | Appearance | Color | |
Cymbals | Damping Characteristics | Sonority | |
Cymbals | Mechanical Properties | Strength | |
Power Conductor for Electro-Surgical Pencil | Conductivity (Electrical) | Electrical Conductivity | |
Power Conductor for Electro-Surgical Pencil | Forming Characteristics | Formability | |
Power Conductor for Electro-Surgical Pencil | Mechanical Properties | Spring Properties | |
Electrical | Cold Headed Parts | Conductivity (Electrical) | Electrical Conductivity |
Cold Headed Parts | Conductivity (Thermal) | Thermal Conductivity | |
Cold Headed Parts | Corrosion Resistance | Corrosion Resistance | |
Cold Headed Parts | Mechanical Properties | High Strength | |
Cold Headed Parts | Thermal Properties | Resistance to Stress Relaxation | |
Electrical Connectors | Conductivity (Electrical) | Electrical Conductivity | |
Electrical Connectors | Forming Characteristics | Excellent Formability | |
Electrical Connectors | Mechanical Properties | High Strength | |
Electrical Connectors | Thermal Properties | Resistance to Stress Relaxation | |
Electrical Flexing Contact Blades | Conductivity (Electrical) | Electrical Conductivity | |
Electrical Flexing Contact Blades | Corrosion Resistance | Corrosion Resistance | |
Electrical Flexing Contact Blades | Mechanical Properties | High Endurance Limit | |
Electrical Flexing Contact Blades | Mechanical Properties | High Strength | |
Electrical Flexing Contact Blades | Thermal Properties | Resistance to Stress Relaxation | |
Electronic Connectors | Conductivity (Electrical) | Electrical Conductivity | |
Electronic Connectors | Forming Characteristics | Excellent Formability | |
Electronic Connectors | Mechanical Properties | High Strength | |
Electronic Connectors | Thermal Properties | Resistance to Stress Relaxation | |
Fuse Clips | Conductivity (Electrical) | Electrical Conductivity | |
Fuse Clips | Conductivity (Thermal) | Thermal Conductivity | |
Fuse Clips | Corrosion Resistance | Corrosion Resistance | |
Fuse Clips | Mechanical Properties | High Strength | |
Fuse Clips | Solderability | Solderability | |
Fuse Clips | Thermal Properties | Resistance to Stress Relaxation | |
Switch Parts | Conductivity (Electrical) | Electrical Conductivity | |
Switch Parts | Conductivity (Thermal) | Thermal Conductivity | |
Switch Parts | Corrosion Resistance | Corrosion Resistance | |
Switch Parts | Forming Characteristics | Formability | |
Switch Parts | Mechanical Properties | High Strength | |
Switch Parts | Solderability | Solderability | |
Switch Parts | Thermal Properties | Resistance to Stress Relaxation | |
Wire Brushes | Conductivity (Electrical) | Electrical Conductivity | |
Wire Brushes | Conductivity (Thermal) | Thermal Conductivity | |
Wire Brushes | Corrosion Resistance | Corrosion Resistance | |
Wire Brushes | Forming Characteristics | Formability | |
Wire Brushes | Friction & Wear Properties | Wear Resistance | |
Wire Brushes | Mechanical Properties | High Strength | |
Fasteners | Cotter Pins | Corrosion Resistance | Corrosion Resistance |
Cotter Pins | Forming Characteristics | Formability | |
Cotter Pins | Mechanical Properties | High Strength | |
Cotter Pins | Thermal Properties | Resistance to Stress Relaxation | |
Fasteners, Heavy Duty | Corrosion Resistance | Corrosion Resistance | |
Fasteners, Heavy Duty | Forming Characteristics | Formability | |
Fasteners, Heavy Duty | Mechanical Properties | High Strength | |
Lock Washers | Corrosion Resistance | Corrosion Resistance | |
Lock Washers | Forming Characteristics | Formability | |
Lock Washers | Mechanical Properties | High Strength | |
Lock Washers | Thermal Properties | Resistance to Stress Relaxation | |
Industrial | Beater Bar | Corrosion Resistance | Corrosion Resistance |
Beater Bar | Forming Characteristics | Formability | |
Beater Bar | Friction & Wear Properties | Wear Resistance | |
Beater Bar | Mechanical Properties | High Strength | |
Beater Bar | Thermal Properties | Resistance to Stress Relaxation | |
Bellows | Corrosion Resistance | Corrosion Resistance | |
Bellows | Forming Characteristics | Formability | |
Bellows | Mechanical Properties | High Strength | |
Bourdon Tubing | Corrosion Resistance | Corrosion Resistance | |
Bourdon Tubing | Forming Characteristics | Formability | |
Bourdon Tubing | Mechanical Properties | High Strength | |
Bourdon Tubing | Thermal Properties | Resistance to Stress Relaxation | |
Chemical hardware | Corrosion Resistance | Corrosion Resistance | |
Chemical hardware | Forming Characteristics | Formability | |
Chemical hardware | Mechanical Properties | High Strength | |
Clips, Heavy Duty | Conductivity (Electrical) | Electrical Conductivity | |
Clips, Heavy Duty | Corrosion Resistance | Corrosion Resistance | |
Clips, Heavy Duty | Mechanical Properties | High Strength | |
Clips, Heavy Duty | Thermal Properties | Resistance to Stress Relaxation | |
Clutch Disks | Corrosion Resistance | Corrosion Resistance | |
Clutch Disks | Forming Characteristics | Formability | |
Clutch Disks | Friction & Wear Properties | Wear Resistance | |
Clutch Disks | Mechanical Properties | High Strength | |
Cold Headed Parts | Conductivity (Electrical) | Electrical Conductivity | |
Cold Headed Parts | Corrosion Resistance | Corrosion Resistance | |
Cold Headed Parts | Forming Characteristics | Formability | |
Cold Headed Parts | Mechanical Properties | High Strength | |
Cold Headed Parts | Thermal Properties | Resistance to Stress Relaxation | |
Diaphragms | Corrosion Resistance | Corrosion Resistance | |
Diaphragms | Forming Characteristics | Formability | |
Diaphragms | Mechanical Properties | High Strength | |
Diaphragms | Thermal Properties | Resistance to Stress Relaxation | |
Doctor Blades, Paper Industry | Corrosion Resistance | Corrosion Resistance | |
Doctor Blades, Paper Industry | Friction & Wear Properties | Good Wear Resistance | |
Doctor Blades, Paper Industry | Mechanical Properties | High Strength | |
Gears | Corrosion Resistance | Corrosion Resistance | |
Gears | Forming Characteristics | Formability | |
Gears | Friction & Wear Properties | Wear Resistance | |
Gears | Mechanical Properties | High Strength | |
Perforated Sheets | Corrosion Resistance | Corrosion Resistance | |
Perforated Sheets | Forming Characteristics | Formability | |
Perforated Sheets | Mechanical Properties | High Strength | |
Pinions | Corrosion Resistance | Corrosion Resistance | |
Pinions | Forming Characteristics | Formability | |
Pinions | Friction & Wear Properties | Wear Resistance | |
Pinions | Mechanical Properties | High Strength | |
Pneumatic Hammers | Corrosion Resistance | Corrosion Resistance | |
Pneumatic Hammers | Forming Characteristics | Formability | |
Pneumatic Hammers | Friction & Wear Properties | Wear Resistance | |
Pneumatic Hammers | Mechanical Properties | High Strength | |
Pneumatic Hammers | Thermal Properties | Resistance to Stress Relaxation | |
Sleeve Bushings | Corrosion Resistance | Corrosion Resistance | |
Sleeve Bushings | Forming Characteristics | Formability | |
Sleeve Bushings | Friction & Wear Properties | Wear Resistance | |
Sleeve Bushings | Mechanical Properties | High Strength | |
Springs, Heavy Duty | Corrosion Resistance | Corrosion Resistance | |
Springs, Heavy Duty | Forming Characteristics | Formability | |
Springs, Heavy Duty | Mechanical Properties | High Strength | |
Springs, Heavy Duty | Thermal Properties | Resistance to Stress Relaxation | |
Springs, Helical Extension | Corrosion Resistance | Corrosion Resistance | |
Springs, Helical Extension | Forming Characteristics | Formability | |
Springs, Helical Extension | Mechanical Properties | High Strength | |
Springs, Helical Extension | Thermal Properties | Resistance to Stress Relaxation | |
Springs, Helical Torsion | Corrosion Resistance | Corrosion Resistance | |
Springs, Helical Torsion | Forming Characteristics | Formability | |
Springs, Helical Torsion | Mechanical Properties | High Strength | |
Springs, Helical Torsion | Thermal Properties | Resistance to Stress Relaxation | |
Textile machinery | Corrosion Resistance | Corrosion Resistance | |
Textile machinery | Forming Characteristics | Formability | |
Textile machinery | Friction & Wear Properties | Wear Resistance | |
Textile machinery | Mechanical Properties | High Strength | |
Thrust Bearings | Corrosion Resistance | Corrosion Resistance | |
Thrust Bearings | Forming Characteristics | Formability | |
Thrust Bearings | Friction & Wear Properties | Wear Resistance | |
Thrust Bearings | Mechanical Properties | High Strength | |
Thrust Bearings | Thermal Properties | Resistance to Stress Relaxation | |
Truss Wire | Corrosion Resistance | Corrosion Resistance | |
Truss Wire | Forming Characteristics | Formability | |
Truss Wire | Mechanical Properties | High Strength | |
Truss Wire | Thermal Properties | Resistance to Stress Relaxation | |
Welding Wire | Conductivity (Electrical) | Electrical Conductivity | |
Welding Wire | Conductivity (Thermal) | Thermal Conductivity | |
Welding Wire | Corrosion Resistance | Oxidation Resistance | |
Welding Wire | Softening Resistance | Resistance to Thermal Softening | |
Well Drill Equipment | Corrosion Resistance | Corrosion Resistance | |
Well Drill Equipment | Forming Characteristics | Formability | |
Well Drill Equipment | Friction & Wear Properties | Wear Resistance | |
Well Drill Equipment | Mechanical Properties | High Strength | |
Well Drill Equipment | Thermal Properties | Resistance to Stress Relaxation | |
Marine | Marine Parts | Conductivity (Thermal) | Thermal Conductivity |
Marine Parts | Corrosion Resistance | Corrosion Resistance | |
Marine Parts | Corrosion Resistance | Corrosion Resistance to Salt Water | |
Marine Parts | Forming Characteristics | Formability | |
Marine Parts | Mechanical Properties | High Strength |
CORROSION PROPERTIES ALLOY C521
Environmental Category | Specific Environment | Resistance Level | Corrosion notes |
---|---|---|---|
Alkali | Aluminum Hydroxide | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
Ammonium Hydroxide | Poor | Reduced corrosion resistance due to soluble complex ion formation | |
Barium Carbonate | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates | |
Barium Hydroxide | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates | |
Black Liquor, Sulfate Process | Fair | Corrosion rate increases at elevated temperatures or with traces of moisture | |
Calcium Hydroxide | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates | |
Lime | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates | |
Lime-Sulfur | Fair | Corrosion rate increases at elevated temperatures or with traces of moisture | |
Magnesium Hydroxide | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates | |
Potassium Carbonate | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates | |
Potassium Hydroxide | Good | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates | |
Sodium Bicarbonate | Good | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates | |
Sodium Carbonate | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates | |
Sodium Hydroxide | Good | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates | |
Sodium Phosphate | Excellent | ||
Sodium Silicate | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates | |
Sodium Sulfide | Fair | Corrosion rate increases at elevated temperatures or with traces of moisture | |
Atmosphere | Atmosphere, Industrial | Excellent | Affected by pollutants and other environmental factors. Hydrogen sulfide causes rapid tarnishing. |
Atmosphere, Marine | Excellent | Protective green basic copper chloride or carbonate patina. | |
Atmosphere, Rural | Excellent | Low corrosion rates, no localized attack | |
Chlor. organic | Carbon Tetrachloride, Dry | Excellent | Corrosion rate increases at elevated temperatures or with traces of moisture |
Carbon Tetracholoride, Moist | Good | Corrosion rate increases at elevated temperatures | |
Chloroform, Dry | Excellent | Corrosion rate increases at elevated temperatures or with traces of moisture | |
Ethyl Chloride | Good | Corrosion rate increases at elevated temperatures or with traces of moisture | |
Methyl Chloride, Dry | Excellent | Corrosion rate increases at elevated temperatures or with traces of moisture | |
Trichlorethylene, Dry | Excellent | Corrosion rate increases at elevated temperatures or with traces of moisture | |
Trichlorethylene, Moist | Good | Corrosion rate increases at elevated temperatures | |
Fatty acid |
Oleic Acid | Excellent | Corrosion rate increases at elevated temperatures or with traces of moisture |
Palmitic Acid | Good | Corrosion rate increases at elevated temperatures or with traces of moisture | |
Stearic Acid | Good | Corrosion rate increases at elevated temperatures or with traces of moisture | |
Food/beverage | Beer | Excellent | May affect color or taste |
Beet Sugar Syrups | Excellent | May affect color or taste | |
Cane Sugar Syrups | Excellent | May affect color or taste | |
Carbonated Beverages | Good | Acidity increases corrosion. May affect color or taste. | |
Carbonated Water | Good | Acidity increases corrosion. May affect color or taste. | |
Cider | Excellent | May affect color or taste | |
Coffee | Excellent | May affect color or taste | |
Corn Oil | Excellent | May affect color or taste | |
Cottonseed Oil | Excellent | May affect color or taste | |
Fruit Juices | Good | Acidity increases corrosion. May affect color or taste. | |
Gelatine | Excellent | May affect color or taste | |
Milk | Excellent | May affect color or taste | |
Sugar Solutions | Excellent | May affect color or taste | |
Vinegar | Good | Acidity increases corrosion. May affect color or taste. | |
Gas | Ammonia, Absolutely Dry | Excellent | Rapid corrosion increases with traces of moisture |
Ammonia, Moist | Poor | More corrosion resistant in dry gas | |
Carbon Dioxide, Dry | Excellent | Corrosion increases with trace of moisture | |
Carbon Dioxide, Moist | Good | More corrosion resistant in dry gas | |
Hydrogen | Excellent | Copper and copper alloys containing copper oxide susceptible to attack | |
Nitrogen | Excellent | Resistant at cryogenic and room temperatures | |
Oxygen | Excellent | Scaling at elevated temperatures | |
Halogen gas | Bromine, Dry | Excellent | Rapid corrosion increases with traces of moisture |
Bromine, Moist | Good | More corrosion resistant in dry gas | |
Chlorine, Dry | Excellent | Rapid corrosion increases with traces of moisture | |
Chlorine, Moist | Fair | More corrosion resistant in dry gas | |
Hydrocarbon | Acetylene | Poor | Forms explosive compound in presence of moisture |
Asphalt | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Benzine | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Benzol | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Butane | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Creosote | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Crude Oil | Good | Careful consideration must be given to specific contaminants when selecting materials for this complex environment | |
Freon | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Fuel Oil | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Gasoline | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Hydrocarbons, Pure | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Kerosene | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Natural Gas | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Paraffin | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Propane | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Tar | Not Recommended | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Turpentine | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly | |
Inorganic acid - non-oxidizing | Boric Acid | Excellent | Increased corrosion at elevated temperatures and with oxidizers including oxygen (air), dichromates, permanganates and sulfates |
Carbolic Acid | Good | Increased corrosion at elevated temperatures and with oxidizers including oxygen (air), dichromates, permanganates and sulfates | |
Hydrobromic Acid | Fair | Increased corrosion at elevated temperatures and with oxidizers including oxygen (air), dichromates, permanganates and sulfates | |
Hydrochloric Acid | Fair | Generally limted to applications in cold, oxidizer free, dilute (<1%) or concentrated solutions | |
Hydrocyanic Acid | Poor | Reduced corrosion resistance due to soluble complex ion formation | |
Hydrofluoric Acid | Fair | Generally limted to applications in cold, oxidizer free, dilute (<1%) or concentrated solutions | |
Hydrofluosilicic Acid | Good | Generally limted to applications in cold, oxidizer free, dilute (<1%) or concentrated solutions | |
Phosphoric Acid | Good | Increased corrosion at elevated temperatures and with oxidizers including oxygen (air), dichromates, permanganates and sulfates | |
Sulfuric Acid | Good | Not suitable for hot concentrated solutions | |
Inorganic acid - oxidizing | Chromic Acid | Poor | Severe oxidizing environment. |
Nitric Acid | Poor | Severe oxidizing environment. | |
Sulfurous Acid | Good | Increased corrosion at elevated temperatures and with oxidizers including oxygen (air), dichromates, permanganates and sulfates | |
Liquid metal | Mercury | Poor | Severe liquid metal embrittlement |
Miscellaneous | Glue | Excellent | Low corrosion rates, no localized attack |
Linseed Oil | Good | Low corrosion rates, no localized attack | |
Rosin | Excellent | Low corrosion rates, no localized attack | |
Sewage | Excellent | Corrosion affected by salt concentration, temperature, velocity, dissolved oxygen content and pollutants. | |
Soap Solutions | Excellent | Corrosion affected by salt concentration, temperature, velocity, dissolved oxygen content and pollutants. | |
Varnish | Excellent | Low corrosion rates, no localized attack | |
Neutral/acid salt | Alum | Good | |
Alumina | Excellent | Low corrosion rates, no localized attack | |
Aluminum Chloride | Good | Strong agitation and aeration increases corrosion | |
Aluminum Sulfate | Good | Suitable for neutral or alkaline conditions | |
Ammonium Chloride | Poor | Reduced corrosion resistance due to soluble complex ion formation | |
Ammonium Sulfate | Fair | Reduced corrosion resistance due to soluble complex ion formation | |
Barium Chloride | Good | Strong agitation and aeration increases corrosion | |
Barium Sulfate | Excellent | Low corrosion rates, no localized attack | |
Barium Sulfide | Fair | High zinc content alloys preferred | |
Calcium Chloride | Excellent | Hydrolylsis produces weak acidic condition | |
Carbon Disulfide | Good | High zinc content alloys preferred | |
Magnesium Chloride | Good | Hydrolylsis produces weak acidic condition | |
Magnesium Sulfate | Excellent | Low corrosion rates, no localized attack | |
Potassium Chloride | Excellent | Hydrolylsis produces weak acidic condition | |
Potassium Cyanide | Poor | Reduced corrosion resistance due to soluble complex ion formation | |
Potassium Dichromate Acid | Poor | Highly oxidizing under acidic conditions | |
Potassium Sulfate | Excellent | Low corrosion rates, no localized attack | |
Sodium Bisulfate | Good | Suitable for neutral or alkaline conditions | |
Sodium Chloride | Excellent | Hydrolylsis produces weak acidic condition | |
Sodium Cyanide | Poor | Low corrosion rates, no localized attack | |
Sodium Dichromate, Acid | Poor | Highly oxidizing under acidic conditions | |
Sodium Sulfate | Excellent | Low corrosion rates, no localized attack | |
Sodium Sulfite | Good | Suitable for neutral or alkaline conditions | |
Sodium Thiosulfate | Fair | High zinc content alloys preferred | |
Zinc Chloride | Fair | Hydrolylsis produces weak acidic condition | |
Zinc Sulfate | Good | Suitable for neutral or alkaline conditions | |
Organic solvent | Acetone | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts |
Alcohols | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts | |
Amyl Acetate | Excellent | ||
Amyl Alcohol | Excellent | ||
Butyl Alcohol | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts | |
Ethers | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts | |
Ethyl Acetate | Excellent | ||
Ethyl Alcohol | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts | |
Lacquer Solvents | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts | |
Methyl Alcohol | Excellent | ||
Toluene | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts | |
Organic acid | Acetic Acid | Good | Useful corrosion resistance in absence of oxidizers such as oxygen (air), oxidizing salts and >5% chlorides. Optimum resistance at room temperature and above boiling point. |
Acetic Anhydride | Good | Useful corrosion resistance in absence of oxidizers such as oxygen (air), oxidizing salts and >5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Benzoic Acid | Excellent | Useful corrosion resistance in absence of oxidizers such as oxygen (air), oxidizing salts and >5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Butyric Acid | Excellent | Useful corrosion resistance in absence of oxidizers such as oxygen (air), oxidizing salts and >5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Chloracetic Acid | Good | Useful corrosion resistance in absence of oxidizers such as oxygen (air), oxidizing salts and >5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Citric Acid | Excellent | Useful corrosion resistance in absence of oxidizers such as oxygen (air), oxidizing salts and >5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Formic Acid | Excellent | Useful corrosion resistance in absence of oxidizers such as oxygen (air), oxidizing salts and >5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Lactic Acid | Excellent | Useful corrosion resistance in absence of oxidizers such as oxygen (air), oxidizing salts and >5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Oxalic Acid | Excellent | Useful corrosion resistance in absence of oxidizers such as oxygen (air), oxidizing salts and >5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Tannic Acid | Excellent | Useful corrosion resistance in absence of oxidizers such as oxygen (air), oxidizing salts and >5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Tartaric Acid | Excellent | Useful corrosion resistance in absence of oxidizers such as oxygen (air), oxidizing salts and >5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Trichloracetic Acid | Good | Useful corrosion resistance in absence of oxidizers such as oxygen (air), oxidizing salts and >5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Organic compound | Aniline | Fair | Corrosion rate increases at elevated temperatures or with traces of moisture |
Aniline Dyes | Fair | Corrosion rate increases at elevated temperatures or with traces of moisture | |
Castor Oil | Excellent | Low corrosion rates, no localized attack | |
Ethylene Glycol | Excellent | Low corrosion rates, no localized attack | |
Formaldehyde | Excellent | Low corrosion rates, no localized attack | |
Furfural | Excellent | Low corrosion rates, no localized attack | |
Glucose | Excellent | Low corrosion rates, no localized attack | |
Glycerine | Excellent | Low corrosion rates, no localized attack | |
Lacquers | Excellent | Low corrosion rates, no localized attack | |
Oxidizing salt | Ammonium Nitrate | Poor | Reduced corrosion resistance due to soluble complex ion formation |
Bleaching Powder, Wet | Good | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Borax | Excellent | Low corrosion rates, no localized attack | |
Bordeaux Mixture | Excellent | Low corrosion rates, no localized attack | |
Calcium Bisulfite | Good | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Calcium Hypochlorite | Good | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Copper Chloride | Fair | Severe oxidizing environment. | |
Copper Nitrate | Fair | Oxidizing environment | |
Copper Sulfate | Good | Hydrolylsis produces weak acidic condition | |
Ferric Chloride | Poor | Severe oxidizing environment. | |
Ferric Sulfate | Poor | Severe oxidizing environment. | |
Ferrous Chloride | Good | Strong agitation and aeration increases corrosion | |
Ferrous Sulfate | Good | Hydrolylsis produces weak acidic condition | |
Hydrogen Peroxide | Good | Oxidizing environment | |
Mercury Salts | Poor | Noble metal salt, plates on copper surface | |
Potassium Chromate | Excellent | Suitable for neutral or alkaline conditions | |
Silver Salts | Poor | Noble metal salt, plates on copper surface | |
Sodium Bisulfite | Good | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Sodium Chromate | Excellent | Suitable for neutral or alkaline conditions | |
Sodium Hypochlorite | Fair | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Sodium Nitrate | Good | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. | |
Sodium Peroxide | Fair | Oxidizing environment | |
Sulfur compound | Hydrogen Sulfide, Dry | Excellent | Rapid corrosion increases with traces of moisture |
Hydrogen Sulfide, Moist | Poor | High zinc content alloys preferred | |
Sulfur Chloride, Dry | Excellent | Rapid corrosion increases with traces of moisture | |
Sulfur Dioxide, Dry | Excellent | Scaling at elevated temperatures | |
Sulfur Dioxide, Moist | Good | Mixed oxide and sulfide scale forms | |
Sulfur Trioxide, Dry | Excellent | Corrosion increases with trace of moisture | |
Sulfur, Dry | Good | High zinc content alloys preferred | |
Sulfur, Molten | Poor | Forms non-protective copper sulfide | |
Water | Brines | Excellent | Increased corrosion with oxidizers, e.g. oxygen (air), chlorine, hypochlorites and ferric ions. Refer to specific salt solution ratings. |
Mine Water | Fair | Acidic waters containing oxidizers are highly corrosive. | |
Sea Water | Excellent | Corrosion affected by salt concentration, temperature, dissolved oxygen content and pollutants. Erosion-corrosion at moderate velocities. | |
Steam | Excellent | Resistant to pure steam. Carbon dixide, dissolved oxygen or ammonia can increase corrosion. | |
Water, Potable | Excellent | Corrosion affected by water chemistry (mineral content, acidity) system design and fabrication. Free carbon dioxide can cause pitting in cold water. Pitting in hot water caused by cathodic deposits. Erosion-corrosion at high velocities. |